It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The only letter not appearing on the Periodic Table is the letter "J".
180
Hot water can freeze faster than cold water.
181
For every gallon of sea water, you get more than a quarter pound of salt.
45
Iron weighs more after it rusts.
68
Research indicates that plants grow healthier when they are stroked.
173
4.5 pounds of sunlight strike the Earth each day.
27